:root {
    interpolate-size: allow-keywords;
    --heading-font: "Raleway", sans-serif;
    --body-font: "Cabin", sans-serif;
    --accent-font: "Inter", sans-serif;

    --blue: #173f7d;
    --video-blue: linear-gradient(180deg,#003286 0%,#002b7a 100%);
    --blue-light: #336bab;    
    --gray-dark: #5e5e5e;
    --gray: #666666;
    --gray-light: #f7f7f7;
    --gray-lighter: #f2f2f2;    
    --hero-overlay: linear-gradient(270deg,rgba(61,55,54,.1) 0%,rgba(45,36,35,.6) 45%,rgba(61,55,54,.9) 100%);
    --dark: #222;
    --link: #0099ff;
    --link-hover: #0088ff;
    --border-very-light: rgba(0,0,0,0.05);

    --border-radius: 0.5rem;
    --plus-length: 1rem;
    --plus-width: 0.125rem;
}

body {
    background-color: #fff;
    font-family: var(--body-font);
    font-size: 1.125rem;
    letter-spacing: -0.5px;
    margin: 0;
    line-height: 1.5;
    text-wrap-style: balance;
}

h1,
h2 {
    font-family: var(--heading-font);
    line-height: 1.1;
}

h1 {
    font-size: 4rem;
    margin: 5rem 0 1.5rem;
    letter-spacing: -2px;    
}

h2 {
    font-size: 3rem;
    color: var(--blue);    
    letter-spacing: -1.5px;
    margin: 0 0 1rem;
}

h3 {
    font-size: 1.25rem;
    color: var(--blue-light);
    margin: 0 0 2rem;
}

.accordion,
.footer {
    font-family: var(--accent-font);
}

.container {    
    padding: 0 1.5rem;
    margin: 0 auto;
}

@media (min-width: 65.5rem) {
    .container {
        max-width: 62.5rem;
    }    
}

.section {
    padding: 80px 0;
}

.hero {
    background-size: cover;
    background-repeat: no-repeat;
    color: white;
}

.hero a {
    opacity: 0.8;    
    height: 5rem;
    width: 4.75rem;
    display: block;
}

.hero h1,
.hero p {
    max-width: 33.75rem;
}

.hero p {
    font-size: 1.375rem;
    letter-spacing: -0.7px;
    color: rgba(255,255,255,0.8);
}

.video {
    background: var(--video-blue);
}

.video-container {
    aspect-ratio: 1.7777777 / 1;    
    width: 100%;
}

.video video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.info {
    background: var(--gray-light);    
}

.info p {
    color: var(--gray-dark);
}

.info .container {
    display: grid;
    gap: 6.25rem;    
}


.info-block {
    display: flex;    
    gap: 4.5rem;
}

.info-block > div {
    width: calc(50% - 2.25rem);
    flex-shrink: 0;
}

.info-image {
    align-self: stretch;        
}

.info-image img {
    height: 100%;
    width: 100%;
    object-fit: cover;
    border-radius: var(--border-radius);
}

.info-content {
    padding: 2rem 0;
}

.learn-more h2 {
    text-align: center;
    margin-bottom: 3.75rem;
}

.accordion {
    border-radius: var(--border-radius);
    padding: 0 1.25rem;
    background: var(--gray-lighter);
}

.accordion-item {
    font-size: 1rem;
    font-weight: 600;
    font-family: var(--accent-font);
}

.accordion-item summary {
    list-style: none;
    padding: 1.25rem 0 1.25rem 2.5rem;
    cursor: pointer;
    position: relative;
}

.accordion-item summary::before,
.accordion-item summary::after {
    content: "";
    background-color: rgba(0,0,0,0.3);
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
}

.accordion-item summary::before {
    width: var(--plus-length);
    height: var(--plus-width);
    left: 0;    
}

.accordion-item summary::after {
    width: var(--plus-width);
    height: var(--plus-length);
    left: calc(calc(var(--plus-length) / 2) - calc(var(--plus-width) / 2));
}

.accordion-item[open] summary::before,
.accordion-item[open] summary::after {
    transform: translateY(-50%) rotate(45deg);
}

.accordion-item p {
    padding: 0 1.25rem 1.25rem 2.5rem;     
    color: var(--gray);
    margin: 0;
}

.accordion-item summary::-webkit-details-marker {
    display: none;
}

.accordion-item + .accordion-item {
    border-top: 1px solid var(--border-very-light);
}

.footer {
    background-color: var(--dark);
    padding: 2.222rem 3.75rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #e6e6e6;    
    font-size: 0.875rem;
    font-family: var(--accent-font);
    font-weight: 500;
}

.footer p {
    margin: 0;
}

.socials {
    list-style-type: none;
    display: flex;
    gap: 1rem;
    margin: 0;
    padding: 0;
}

.footer a {
    color: var(--link);
    text-decoration: none;
}

.footer a:hover {
    color: var(--link-hover);
    text-decoration: underline;
}

@media (prefers-reduced-motion: no-preference) {
    :root {
        interpolate-size: allow-keywords;
    }

    .accordion-item::details-content {
        display: block;
        block-size: 0;
        overflow: hidden;
        transition-property: block-size, content-visibility;
        transition-duration: 0.5s;
        transition-behavior: allow-discrete;
    }

    .accordion-item[open]::details-content {
        block-size: auto;
        block-size: calc-size(auto);
    }    

    .fade-in-up {
        opacity: 0;
        transform: translateY(100%);
        transition: opacity 0.6s ease-out, transform 0.6s ease-out;
    }

    /* Visible state */
    .fade-in-up.is-visible {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 809px) {
    h1 {
        font-size: 3rem;
    }

    h2 {
        font-size: 2rem;
    }

    .section {
        padding: 3.75rem 0;
    }

    .hero {
        padding: 2rem 0;
    }

    .video {
        padding: 1.25rem 0;
    }    

    .info .container {
        gap: 4rem;
    }

    .info-block {
        flex-direction: column;
        gap: 3rem;
    }

    .info-block div {
        width: auto;
    }

    .info-content {
        padding: 0;
    }

    .info-right {
        flex-direction: column-reverse;
    }

    .footer {
        flex-direction: column;
        padding: 2rem;
        gap: 1rem;
        align-items: flex-start;
    }
}